This knitting machine tensioner is made of high quality plastic,has the advantages of odourless, safe and reliable,and a smooth surface texture. Easy to use and easy to install,this yarn knitting machine tensioner works well, does not require drilling, and it can be easily installed on your knitting machine at the touch of a button. When using this knitting machine, you free up your hands and do not need to hold the yarn to tighten it. The knitting machine tensioner helps to increase the tension and thus increase the efficiency of knitting. This knitting machine adapter brings knitting fun, with a speed and a convenient way.You will receive 3 lovely pink knitting machine tensioner, multiple pieces for your replacement options. Knitting machine tensioner is widely compatible with Sentro 48 needle machine, Sentro 40 needle machine, Sentro 32 needle machine, Sentro 22 needle machine, attention!! Not compatible with Penguin 22 pin machine. Colour:As Shown Material:plastic Package Contents: 5 x Knitting machine adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.